Specifications include, but are not limited to: PHYSICAL PROPERTIES A. The beads shall be manufactured from glass of a composition designed to be highly resistant to traffic wear and to the effects of weathering. The beads shall have no objectionable color that affects the hue of the binder to which they are applied.; B Glass beads for pavement marking shall meet AASHTO M-247, Type I, “standard gradation” except the beads shall have a minimum of 80% true spheres. The beads shall be made from clean colorless transparent glass and shall be smooth, spherically shaped, and free from milkiness, pits, excessive air bubbles, chips, and foreign material. The beads shall have a dual surface treatment consisting of a moisture resistant silicone treatment and a silane adherence surface treatment. The dual treated beads shall pass the Spoon Test method of testing glass beads for moisture resistance, and shall pass the Dansyl Chloride Test method of testing glass beads for adherence coating.; CONTAINER The beads shall be furnished in 2000-pound waterproof and leak-proof containers. Any seams shall be the double stitched fold-over (fell seam) type. Each container shall be legibly marked with the manufacturer’s name, and the year the beads were packaged, the weight and the lot number. Beads received in containers shall be dry, with no caking of the beads.; TESTING City of Omaha and Douglas County will have beads randomly tested by an independent laboratory. If beads are found to not meet specification, the supplier agrees to pay all testing expenses and replace entire shipment within two weeks (14 days) of notification. If replacement shipment is not received within fourteen (14) days, the City and County will commence using the off-spec beads at whatever rate is necessary to provide proper coverage. The remaining balance of the original shipment shall be returned at supplier’s expense, at time of delivery of replacement shipment. There will be no charge for the usage of the off-spec beads.
